Handover in Distributed Telecommunications System
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Solution Overview
Problem
Mobile communications terminals often lack sufficient computing power to efficiently execute advanced applications, especially when moving, due to limited upgrades in processor speed and memory, making it difficult to run resource-intensive applications without hardware upgrades.
Innovation Solution
Implementing a network node with a controller that detects handovers and migrates application modules between base stations, utilizing a distributed processing model based on an actor-dataflow paradigm to ensure efficient and uniform execution of applications across different base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If computing power of mobile communication terminals is increased to execute advanced applications efficiently, then application execution performance is improved, but terminal cost increases
Solution Approach 1:
The application is divided into multiple application modules that can be distributed across different base stations. The terminal only needs to access the module it currently needs, rather than downloading or executing the entire application locally. This segmentation allows high-performance computing to be distributed to base stations while keeping terminal cost low.
Solution Approach 2:
Base stations act as intermediaries between the terminal and the computing resources. When a handover occurs, the base station migrates the required application modules to the target base station, ensuring continuous service without requiring the terminal to have high computing power. The base station mediates the transfer of computational state and data.
2Reliability
If application modules are migrated during handover in a distributed processing system, then service continuity for mobile terminals is improved, but system complexity increases
Solution Approach 1:
Base stations are designed with multi-functionality, serving both as communication access points and as hosts for application module execution. Each base station can independently host and execute application modules, making the system more flexible but also more complex in terms of coordination and state management across multiple base stations.
Data Source
AI summary
A network node comprising a memory and a controller, wherein said controller is configured to: detect that a handover for a mobile communications terminal from a first base station to a second base station and in response thereto determine if an application module associated with the mobile communications terminal is to be migrated, and if so, cause a migration of said application module to be performed.